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    <title>Document</title>
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    <script>
      // 求整数1～100的累加值，但要求跳过所有个位为3的数。
      var sum = 0
      for (var i = 1; i <= 100; i++) {
        if (i % 10 == 3) {
          continue
        }
        sum += i
      }
      console.log(sum)
    </script>
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